gatsby-node.js

const cloudinary = require('cloudinary')

exports.sourceNodes = ({ actions, createNodeId, createContentDigest }, configOptions) => {
    const { createNode } = actions
  
    delete configOptions.plugins
  
    // Configure Cloudinary
    cloudinary.config({
        cloud_name: configOptions.cloudName,
        api_key: configOptions.apiKey,
        api_secret: configOptions.apiSecret
    })

    const processMedia = media => {
        const nodeId = createNodeId(`cloudinary-media-${media.public_id}`)
        const nodeContent = JSON.stringify(media)

        const nodeData = Object.assign({}, media, {
        id: nodeId,
        parent: null,
        children: [],
        internal: {
            type: `CloudinaryMedia`,
            content: nodeContent,
            contentDigest: createContentDigest(media),
        },
        })

        return nodeData
    }
    const {resourceType, prefix, tags, maxResults, type} = configOptions

    const queryParams = new Object;

    if(!!resourceType){queryParams.resource_type = resourceType}
    if(!!tags){queryParams.tags = tags}
    if(!!maxResults){queryParams.max_results = maxResults}
    if(!!type){queryParams.type = type}
    if(!!prefix && !!type){queryParams.prefix = prefix}

    return (
        cloudinary.v2.api.resources(queryParams,(error, result)=>{
            if(result.resources.length > 0){
                result.resources.forEach((mediaItem)=>{
                    const nodeData = processMedia(mediaItem)
                    createNode(nodeData)
                    console.log("Created Cloudinary file node")
                })  
            }else{
                console.log('\n ~Yikes! No Cloudinary files found and nodes not created. Try a better query.')
            }
            if(error){console.log(error)}
            
        })
    )
  }